/Engine/Source/Runtime/InteractiveToolsFramework/Public/InteractiveTool.h
Input Behaviors support Add an input behavior for this Tool. Typically only effective when called during toolSetup(), as the behavior set gets submitted to the input router after that call.
virtual void AddInputBehavior ( [UInputBehavior](API\Runtime\InteractiveToolsFramework\UInputBehavior) * Behavior, void * Source )